Dennis Quaid is ending marriage for Kimberly Buffington-Quaid once and for all!

Kimberly, initially filed for divorce last Spring. A month later she put the split on hold so they could work on their marriage in tropical locations. But it appears the pair weren't able to settle their differences after all.

It's sad, but at least things seem amicable!

The actor requests joint (not full) physical and legal custody of their 4-year-old twins, and is offering to pay spousal support, according to the petition.

Kim was Dennis' third wife. He was previously married to Meg Ryan and P.J. Soles.

Perez, do you have a short memory? Things are NOT amicable, remember? You reported on that yourself too in October. She filed for seperation because she was fed up with his constant cheating and is demanding sole physical custory. She's not gonna stay in Californiahey!